gf2755p2000ahs

Transmission oil cooling, function

Type gf · topic 27.55 · version 0101 · 2010-06-30

Applies to: TRANSMISSION 722.9 in MODEL 216.3 as of model year 2009 / YoM 08 TRANSMISSION 722.9 in MODEL 216.3 (except 216.374) as of Model Year 2011 /YoM 10 model refinement package TRANSMISSION 722.9 in MODEL 221.0 as of model year 2009 / YoM 08 TRANSMISSION 722.9 in MODEL 221.0 (except 221.095) TRANSMISSION 722.9 in MODEL 221.0 (except 221.074) as of Model Year 2011 /YoM 10 TRANSMISSION 722.9 in MODEL 221.1 as of model year 2009 / YoM 08 TRANSMISSION 722.9 in MODEL 221.1 (except 221.195) TRANSMISSIO

Where it sits

Function group 2 Chassis › 27 Automatic transmission › 27.55 Transmission-oil cooling — Series 216 (models 3**, 371, 373, 376, 377, 379, 386, 394) · Series 221 (models 0**, 003, 022, 026, 028, 054, 056, 057, 070, 071, 073, 074, 077, 080, 082, 083, 084, 086, 087, 094, 095, 1**, 103, 122, 126, 128, 154, 156, 157, 170, 171, 173, 174, 176, 177, 179, 180, 182, 183, 184, 186, 187, 194, 195)

Also applies to engines/gearboxes: 722 9**

GF27.55-P-2000AHS

Transmission oil cooling, function

23.6.10

TRANSMISSION 722.9 in MODEL 216.3 as of model year 2009
/ YoM 08

TRANSMISSION 722.9 in MODEL 216.3 (except 216.374) as of Model Year 2011
/YoM 10 model refinement package

TRANSMISSION 722.9 in MODEL 221.0 as of model year 2009
/ YoM 08

TRANSMISSION 722.9 in MODEL 221.0 (except 221.095)

TRANSMISSION 722.9 in MODEL 221.0 (except 221.074) as of Model Year 2011
/YoM 10

TRANSMISSION 722.9 in MODEL 221.1 as of model year 2009
/ YoM 08

TRANSMISSION 722.9 in MODEL 221.1 (except 221.195)

TRANSMISSION 722.9 in MODEL 221.1 (except 221.174) as of Model Year 2011
/YoM 10

Transmission oil cooling, function

P27.55-2096-76

Cooling circuit

62 Radiator

63 Transmission oil heat exchanger

A Feed, cooling circuit from transmission

B Feed, transmission oil heat exchanger

C Return, transmission oil heat exchanger

D Return, cooling circuit into transmission

Function requirements for transmission oil cooling, general

Circuit 87 ON

Circuit 61 (engine running)

Transmission oil cooling, general

Transmission oil cooling lowers the temperature of the transmission oil and thus prevents overheating damage in the transmission.

Transmission oil cooling, function sequence

The transmission oil is drawn out of the transmission oil pan by a mechanical pump in the transmission and is pumped via the feed to the transmission oil heat exchanger (which is integrated in the engine radiator). The transmission oil then flows through the return line back to the transmission.

Overview of system components for automatic transmission (AT)

GF27.10-P-9992AHS

Referenced documents